[haiku-bugs] [Haiku] #8616: Synaptics not found (fix included)
- From: "dukzcry" <trac@xxxxxxxxxxxx>
- Date: Thu, 31 May 2012 08:35:20 -0000
#8616: Synaptics not found (fix included)
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Reporter: dukzcry | Owner: siarzhuk
Type: bug | Status: new
Priority: normal | Milestone: R1
Component: Drivers/Mouse/PS2 | Version: R1/Development
Keywords: | Blocked By:
Blocking: | Has a Patch: 0
Platform: All |
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While using an old laptop with Synaptics touchpad of 5.9 version, i found,
that the device is not get detected by Haiku. After digging in, i found
few independent problems:
[1] probe_trackpoint() (IBM Trackpoint detection) messes synaptics probing
(i.e. after messup, you're getting all 0x90 for all of minver, devid and
majver, while it's a value for minver only. Right data gets later and
catches by ps2_dev intr handler (gets dropped of course)). So,
ps2_reset_mouse() after trackpoint probing fixes the problem. I suppose
that any other device probing before synaptics detection will be painful.
[2] With my synaptics device, a small delay (after any of
ps2_reset_mouse()) required, before touchpad can return correct data back
to you.
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[1] https://raw.github.com/druga/haiku-
stuff/c83ca2843173b2b03ce19daa5184d3c4743cb378/ps2_synaptics/patch-
ps2_dev.cpp
[2] https://raw.github.com/druga/haiku-
stuff/c83ca2843173b2b03ce19daa5184d3c4743cb378/ps2_synaptics/patch-
ps2_synaptics.cpp
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Ticket URL: <http://dev.haiku-os.org/ticket/8616>
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